Titanoboa, the largest snake ever discovered, was actually found by accident in a coal mine in Colombia. In 2009, scientists ...

From fearsome land mammals to deadly sea creatures, we rank the most terrifying animals that once roamed Earth.

Although nobody's ever found a complete skeleton, paleontologists have an assortment of Titanoboa fossils to go on, including ribs, backbones and pieces of skull. They paint a striking image of the ...

From a 4-metric-ton sloth to a 15-meter snake, not forgetting the mammoth, a prehistoric megafauna with imposing bodies has been recreated at the Natural History Museum.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A shimmering ...

The 237-million-year-old remains are among the oldest silesaurid fossils ever found, adding to paleontologists’ understanding of this still-mysterious group of prehistoric reptiles Alexa Robles ...

Every once in a great while paleontological fieldwork turns up a fossil so extraordinary that it revolutionizes our understanding of the origin and evolution of an entire branch of the tree of life.

The 550-million-year-old Quaestio simpsonorum is the first fossil to show a definitive left-right asymmetry, an important sign of evolutionary development in the history of animals. In 1947 ...